have a good night, everybody. >[captioning performed by national captioning institute] [captions copyright national cable satellite corp. 2012] >> president obama and mid romney will debate here tonight at the university of denver. preparations are underway. reporters are looking at what it might look like. tomorrow night's debate focuses on domestic policy, with a segment on the role of government and health care. another journalist writes, after the opening answer, is up for moderator's to decide when a moderator has gone on for too long. our coverage begins tomorrow night with a preview at 7:00 eastern. at 9:00, jim lehrer moderates the debate. after the debates, your calls, e-mail, and tweets. you can follow our live coverage on c-span, c-span radio, and online at c-span.org. coming next, a preview of the presidential debates. scholars examined whether presidential debates still matter. that is followed by a journalist howard kurtz looking at the role of social media in the 2012 elections. another live debate